William henry monk



No. 620,480. Patented Feb. '28, 1899 w. H. MONK. WHEEL BEARING.

(Application filed Nov. 21, 1898.) (No Model.)

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WILLIAM HENRY MONK,-OF CHESTER, ENGLAND.

WHEEL-GEARING.

SPECIFICATION forming part of Letters Patent No. 620,480, dated February28, 1899.

Application filed November 21, 1898. Serial No. 697,067. (No model.)

' wheelgearing, especially wheelgearing in which one wheel is set at,say, a right angle to the wheel with which it gears, though it may alsobe applied to a wheel adapted to gear with another wheel in orapproximately in the same plane as itself.

My invention has for its objects to facilitate and cheapen manufactureand to reduce friction. v

The manner in which I attain my objects is hereinafter described,reference being had to the accompanying drawings, wherein- Figure 1 isan elevation, partly in section, of a gear constructed according to myinvention gearing with a spur-wheel at right angles thereto. Fig. 2 is arear elevation of the disk, showing the holes for the reception of theballs, the balls being removed. Fig. 3 is a central sectional viewshowing a modification of the device. Fig. 4 is a similar view ofanother modification. Fig. 5 is a side elevation of a pair of wheelsarranged to gear in the same plane, the upper half of the lower wheelbeing shown in central section. Fig. 6 is an edge view, partly insection, of the same.

Similar numerals refer to the same parts throughout the drawings.

. In carrying out my invention as applied to a gear-wheel adapted togear with another wheel situated in a plane at, say, right anglesthereto, as shown in Figs. 1 to 4 of the accompanying drawings, I take acircular metal disk 2 and turn a concentric groove 3 in the face 4thereof at a suitable distance from the periphery 5 and at an angle offorty-five degrees to the said face. The width of this groove issomewhat less than the diameter of certain balls 6, hereinafter referredto. From the back of the disk 2 I drill a circular series of equidistantholes7, which open out into the groove 3. The holes 7 are preferablyslightly larger in diameter than the balls 6, which they are adapted toreceive. The balls project by preferably considerably more than halftheir diameters beyond the bottom of the groove 3, but are preventedfrom falling out forward by stopping the drilling of the holes short ofthe face 4 of the disk. The bottom portions 8 of the holes arepreferably rounded.

The balls 6 constitute the teeth of the.

wheel, and to retain them in their forward position a plate 9 is locatedbehind the disk. This plate may either bear directly on the balls, asshown in Fig. 1, or it may be provided with a circular series of studs10, adapted to enter the holes 7 and bear against the balls 6, as shownin Fig. 3, or other balls 11 may be introduced between the backs of theballs 6 and the face of the said plate 9, as shown in Fig. 4.

The back of the disk 2 may be provided with a screw-threaded boss 12,along which the plate 9 screws, (except when provided with the studs 10,when it slides,) and a nut 13, screwing on behind the said plate,provides adjustment and retains the parts in position, or adjustment maybe provided by other suitable means. The spur-teeth 16 of the wheel 17are set at forty-five degrees to the face 15 of the said wheel and arethin enough to leave and enter the groove 3 in the disk 2. The saidteeth 16 enter between and engage with the ball-teeth 6 of my improvedwheel, and motion may thus be transmitted from one wheel to the otherwith a minimum of friction.

In constructing according to my invention a wheel 21, adapted to gearwith a spur-wheel 22 in the same or nearly the same plane, as shown inFigs. 5 and 6, I form the groove 18, corresponding to the groove 3 inFigs. 1 to 4, in the periphery of the disk and parallel to the facesthereof. The holes 18, corresponding to the holes 7, are drilledradially and are formed with rounded shoulders 24 where they open intothe groove 18. The balls 6 in this case are preferably held up to theirwork and adjusted by a conical-edged plate 20, adapted to move laterallyrelatively to the disk by screwing along the boss 12, the adjustmentbeing locked by the nut 13, screwing along the said boss 12 and bearingagainst the back of the plate 20. The spur-teeth 23 are parallel to thefaces of the wheel 22. If desired, the balls 6 may in either case be adjusted so tight as to form fixed teeth.

What I claim, and desire to secure by Letters Patent, is-

1. In wheel-gearing, the combination with a disk having a peripheralgroove, and holes opening into the said groove, and a hub or boss on thesaid disk, of balls in the said holes, a plate fitting around the saidhub to retain the balls in place, and means for securing the said plateupon the said hub, sub stantially as described.

2. In wheel-gearing, the combination with a disk having a peripheralgroove, and holes opening into the said groove, and a hub on the saiddisk; of balls in the said holes, a

plate fitting upon the said hub and against the said disk for retainingthe said balls in the holes, and a nut screwed upon the said hub to holdthe said plate in position, substantially as described.

3. In wheel-gearing, the combination with a disk having a peripheralgroove and holes opening into the said groove, and a hub or boss on thesaid disk, of balls in the said holes, a plate screwed upon the said huband having a conical edge to support the said balls and a nut alsoscrewed upon the said hub to hold the said plate, substantially asdescribed.

WILLIAM HENRY MONK. WVitnesses: I

ARTHUR H. DAVIES, AUSTIN GREGORY.

